bonifarz
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| Posted on 12-09-07 01:58:35 PM (last edited by bonifarz at 12-26-07 06:04 PM) |
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Overview
Pixelscrambler is a tool that allows you to tune the colors of an extended,
possibly modified ROM of SM64. It reads your tilemolester bookmarks
from an xml file, takes them as offset and ending of the textures you wish
to adjust and optionally tunes the Mario colors. An xml file with the
bookmarks of most textures is provided as well. The program does not
have a GUI, but it should be easy to use and ...fast.
download: http://www.mediafire.com/?4m3c4vjmndx
Example: Turning day into night.
We want to dim the colors, reduce the saturation and add some blue.
Because reducing the lightness of bright colors in HSL space yields
strong hue fluctuations, we also reduce red and green.
The input.txt for the above example.
The head and tail of terminal output (verbose on)
Load screen
Castle at night.
Lethal Lava Land.
Night flight.
The following passage is found in the README.txt
About the files:
The .exe file is a standalone application of the .f90 code created with
gfortran. I provide it for Windows users who do not want to compile
themselves. To run the program, it must be located in the same
directory as the input.txt, the bookmark file and the rom you wish to
read from (otherwise, include the path in the filenames).
If you place a copy of the bookmark file out.xml in your
tilemolester/resources directory and give it the appropriate name,
it will be loaded by tilemolester as well. The program will create two
files, the processed rom and an optional colorsample that can be
viewed with tilemolester.
Screenshot of tilemolester with the bookmarks from out.xml
About the input file:
Most input is commented.
The first three lines give the names of your files,
followed by one line of options and six lines defining
how to process the colors of your rom.
About the options:
The options line is read up to the first blank space or comma,
anything that follows is comment.
Recognized keywords are mario, verbose, sample, wait and swap.
Excluding mario conserves the mario colors.
Excluding verbose reduces terminal output.
With sample, a mapping of both, RGB and HSL space is written in a .z64 file.
The option wait is helpful if you run the .exe by double click
and you don't want to have the window closed on exit.
The option swap switches between big and little endian byte order.
About color transformations:
Consider each coordinate in color space normalized to the interval from 0 to 1.
Scaling factor and shift define a linear function: (color-0.5)*factor+0.5 + shift
Recommended are shifts in [-0.5 , 0.5] and factors of 1 (default).
All values except for hue are capped to the interval from 0 to 1.
Therefore, any scaling factor other than +/- 1 and any amount of shift will
cause a loss of color information. The hue value is not capped but has periodic
boundary conditions. This means you can shift the colors on the hue spectrum
without losing information.
About the colorsample:
With the option sample, a color sample is written, which contains
all possible input and output colors and can be viewed with tilemolester.
The four coloumns are mappings of RGB input and output,
followed by HSL input and output. Note that only that part of HSL space
is shown, which is sampled by your color settings.
A part of the colorsample of the above example.
About custom bookmarks:
If you wish to use your own bookmark file, make sure to have all offsets
arranged in pairs of both, a (group of) textures offset and ending.
The ending is the offset of the first tile NOT to process. If you don't want
to use an xml file from tilemolester, flag all decimal offsets by the patterns
offset=" and ".
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| Posted on 12-09-07 02:08:06 PM |
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Some, uh, screenshots of what this does would be nice.
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bonifarz
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| Posted on 12-09-07 02:18:06 PM |
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Originally posted by Xkeeper
Some, uh, screenshots of what this does would be nice.
Thanks. I thought it would be clear. Tilemolestor Screenie for that job added.
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| Posted on 12-09-07 02:36:07 PM |
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...
It looks like something you could do in Paint or Irfanview. Uh.
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bonifarz
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| Posted on 12-10-07 05:41:45 AM |
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Originally posted by Xkeeper
...
It looks like something you could do in Paint or Irfanview. Uh.
Uh... let me explain.
First of all, it does not process any picture format, but accesses the rom directly to overwrite the regions bit by bit. That would not be such a big deal if TT64 could export all the textures or tilemolester was a bit more flexible in exporting and importing.
Second, even if you could easily export the textures you wish to modify, you would have to process one after the other and import them all again. Here you can sweep over as many regions as you wish in one run, each possibly containing several textures.
Third, the software you mentioned seems to have very limited color adjusting capabilities. The example I gave was just to invert the colors, which is trivial, but you can adjust the strength and scale of the r g and b channel separately as well.
Fourth, if the program is useless indeed, that is no problem. I implemented it to learn something and decided to share my insights.
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| Posted on 12-10-07 10:01:20 AM (last edited by Ebeb at 12-10-07 03:34 PM) |
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| This is a nice tool, though, bonifarz. Now I can invert colors without getting annoyed by Tile Molester. Much. (I really should come up with another SM64 texture idea, inverted colors is getting stupid and a bit old). |
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| Posted on 12-10-07 12:27:36 PM |
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| Any tile editing programs without endian problems? I'd hate to make a hack with bleedy colors. |
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| Posted on 12-11-07 10:24:12 AM |
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Originally posted by paulguy
Any tile editing programs without endian problems?
True. As I learn about these issues, I included another option to switch between big and little endian byte order. I also found a couple of other problems that should be fixed now. I will post the update after some testing. It would be nice if I could also provide a full list of all texture offsets so you could process the color values of the entire rom in one run. But I think I am too lazy for that. On the other hand, this would allow a REAL i/o check that prevents you from scambling asm code 
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| Posted on 12-13-07 05:36:08 AM |
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What Matthew Coburn has to say on this topic...
****
The thing is, can the N64 still read the correct texture for the paintings? Eg. Willl the ROM display Bomb-omb Battle Field's painting correctly, or just display garabage?
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bonifarz
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| Posted on 12-13-07 01:49:36 PM (last edited by bonifarz at 12-15-07 04:52 AM) |
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Originally posted by Matthew Coburn
The thing is, can the N64 still read the correct texture for the paintings? Eg. Willl the ROM display Bomb-omb Battle Field's painting correctly, or just display garabage?
Here WAS an example of the inversion of the red color channel.
The next release will not overwrite parts of your ROM but create a new file.
It might be ready soon, or take its time for debugging. Let's see.
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| Posted on 12-13-07 08:35:41 PM |
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...I, for one, would rather see actual talent instead of "hey, look, I can puke on the colors".
(Yeah, I don't like this. LOL INVERTED MARIO!!!111)
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| Posted on 12-13-07 09:47:52 PM |
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| Wow! You've made a program that makes the graphics look like they were done by someone tripping on acid! Way to fail! |
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| Posted on 12-14-07 01:11:59 AM |
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What Matthew Coburn has to say on this topic...
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Originally posted by Apophis
Wow! You've made a program that makes the graphics look like they were done by someone tripping on acid! Way to fail!
Hey! Bonifarz has done a wonderful job at making this tool, and you stab him with a "Way to fail" comment?
This program is great if you want to make a "night-time" hack or something. It's also good because you can then replace the painting with your own custom one, eg. a SM64 Beta-like Painting.
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| Posted on 12-14-07 01:23:23 AM |
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| You're right. I was in a bad mood, and I apologize. While I may not see a practical application for this program, I have to admire anyone who can program in fortran. |
bonifarz
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| Posted on 12-14-07 07:17:05 AM |
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Originally posted by Matthew Coburn
Originally posted by Apophis
Wow! You've made a program that makes the graphics look like they were done by someone tripping on acid! Way to fail!
Hey! Bonifarz has done a wonderful job at making this tool, and you stab him with a "Way to fail" comment?
This program is great if you want to make a "night-time" hack or something. It's also good because you can then replace the painting with your own custom one, eg. a SM64 Beta-like Painting.
Heheh, this amuses me. Don't worry, I won't get you wrong and I won't feel offended.
The new program works perfectly now and converts the ENTIRE ROM in about 0.25 seconds on a laptop with 1.7 GHz per core!
Ahmmm, it's not about hacking painting textures, it processes ALL TEXTURES YOU WANT in one run. Am I getting repetitive?
Linear transformations in RGB space work fine, but I will also impement linear transformations in HSL space before I release the program.
And if you want to learn about fortran, just PM me, its the main tool of my masters thesis.
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| Posted on 12-14-07 03:55:12 PM |
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If I want to learn about Fortran, I just read Wikipedia and go from there.
Actually, I'm more surprised at the fact people still use it!
*Kawa slinks back never to post here again
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| Posted on 12-15-07 07:30:23 AM |
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12-15-07 01:30:23am
889 posts
164 days |  |  | I should make a COBOL program which scrambles the colors of random Mario images. That would be very useful! Not.
I see what you're doing here, but I think you may want to try to make it more complex. Like... maybe do a pallete swap or something that'll result in an image that DOESN'T look like somebody left it out in the sun and then spilled rainbow goo on it. Just a suggestion.
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bonifarz
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| Posted on 12-15-07 07:51:21 AM (last edited by bonifarz at 12-15-07 04:56 AM) |
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Originally posted by Metal_Man88
I should make a COBOL program which scrambles the colors of random Mario images. That would be very useful! Not.
I see what you're doing here, but I think you may want to try to make it more complex. Like... maybe do a pallete swap or something that'll result in an image that DOESN'T look like somebody left it out in the sun and then spilled rainbow goo on it. Just a suggestion.
I see it was a mistake to post that old version of the program before my project was finished. Sorry for that. The example I put above was a check for correct behavior of the application and I know that it looks HORRIBLE, so I removed it.
If I have the time, I will finish the code such that it allows you to tune the red, green, blue, hue, saturation and lightness of all textures, just as you are used to tune your pictures with some standard viewer software or open office.
Swapping the palette would be trivial, but here we have 16bbp rgba, a type of rich color format. On the other hand, in the current version I actually create a "palatte" of 2*32^3 possible colors to process the rom's data much faster (and with a better scaling).
Please be patient, there will something to judge soon, but it's not finished up to now.
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| Posted on 12-17-07 11:37:39 PM (last edited by Matthew Coburn at 12-17-07 08:49 PM) |
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What Matthew Coburn has to say on this topic...
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Bonifarz, you have a great tool. I must add it to my hacking collection.
And I was thinking of a "midnight sleepwalk" concept for a SM64 Hack, with your new screenshot.  Heh. '
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bonifarz
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| Posted on 12-18-07 02:43:39 PM (last edited by bonifarz at 12-26-07 06:11 PM) |
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Some things have been rearranged in the input file, some minor issue has been fixed and the colorsample.z64 has been extended to 4x16x32 tiles including a partial mapping of HSL space. All together gives Version 0.3, as linked in the threads header.
Any constructive feedback is highly appreciated.
EDIT:
Version 0.4 is linked and documented at the top of this thread.
It supports tilemolesters bookmark format and optionally tunes the Mario colors.
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